The size of Peterhead is approximately 0.7 square kilometres. It has 1 park covering nearly 0.6% of total area. The population of Peterhead in 2011 was 1,144 people. By 2016 the population was 1,106 showing a population decline of 3.3% in the area during that time. The predominant age group in Peterhead is 50-59 years. Households in Peterhead are primarily childless couples and are likely to be repaying $1400 - $1799 per month on mortgage repayments. In general, people in Peterhead work in a professional occupation. In 2011, 63.1% of the homes in Peterhead were owner-occupied compared with 67.1% in 2016. Currently the median sales price of houses in the area is $475,000.